.contents {
  min-width: 30vw;
  max-width: 50vw;
  height: 30px;
  margin: auto;
  color: whitesmoke;
  box-sizing: border-box;
  border: 1px solid wheat;
  padding: 8px;
  padding-left: 10px;
  word-break: break-all;
  display: -webkit-box;
  -webkit-line-clamp: 2; /*限制在一个块元素显示的文本的行数*/
  -webkit-box-orient: vertical;
  overflow: hidden;
  list-style: none;
}
.contents:hover{
  background-color: rgba(0,80,80,.3);
  cursor: pointer;
}
.blog-content {
  width: 60vw;
  min-height: calc(30vh);
  border: 1px solid aqua;
  margin: auto;
  color: black;
  background-color: whitesmoke;
  padding:10px 30px 10px 30px;
}
.blog-content  img {
  margin: auto;
  max-width: 60vw;
}
div.author-info{
  width: 100%;
  height: 30px;
}

div.author-info>.info{
  float: right;
}
input[type=button].tab-btn,
button.tab-btn{
  width: 50px;
  height: 25px;
  border-radius: 20px;
}